Dynamic Street Light Brightness Control via Vehicle Detection
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Solution Overview
Problem
Traditional street light systems consume excessive energy as they maintain constant brightness regardless of vehicle presence, leading to unnecessary electricity waste and increased costs, which is particularly problematic during energy crises.
Innovation Solution
An energy-saving street light system with dynamic real-time brightness adjustment using control processors equipped with dimming, detection, sending, receiving units, and memory, employing Bluetooth communication to adjust luminance based on vehicle proximity, reducing brightness when no vehicles are present while maintaining safety lighting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If street lights maintain constant brightness during operating time, then driver safety and visibility are ensured, but excessive energy consumption and electricity waste occur
Solution Approach 1:
The patent implements dynamic brightness adjustment by detecting vehicle presence and modulating street light output accordingly. When vehicles are detected, lights maintain full brightness for safety; when no vehicles are present, brightness is reduced to save energy. This dynamic adaptation resolves the contradiction between constant safety lighting and energy conservation.
Solution Approach 2:
The system uses detection units to monitor vehicle presence and feeds this information back to control processors, which then adjust street light brightness accordingly. This closed-loop feedback mechanism ensures safety lighting is provided only when needed, eliminating wasteful energy consumption during periods of no traffic.
2Reliability
If street lights are turned on continuously, then traffic safety is maintained, but electricity cost and energy waste increase significantly
Solution Approach 1:
Instead of continuous operation, the patent implements periodic activation based on detected traffic patterns. Street lights are activated only during periods when vehicles are present and deactivated or dimmed during periods of no traffic, creating a periodic on-off pattern that maintains safety while eliminating unnecessary energy waste.
Solution Approach 2:
The street light system automatically detects vehicle presence and adjusts its own operation without external intervention. The detection units and control processors enable the system to self-regulate brightness based on real-time traffic conditions, eliminating the need for continuous manual control while optimizing both safety and energy efficiency.
3Use of energy by moving object
If brightness is reduced to save energy, then energy consumption decreases, but driver visibility and safety may be compromised
Solution Approach 1:
The system dynamically adjusts brightness based on real-time vehicle detection, ensuring full illumination intensity is maintained whenever vehicles are present. Brightness is reduced only during periods of no detected traffic, thereby preserving driver visibility and safety during critical periods while achieving energy savings during non-critical periods.
Solution Approach 2:
The patent changes the illumination intensity parameter conditionally based on detected traffic patterns. When vehicles are detected, the system maintains high illumination intensity for safety; when no vehicles are present, it reduces the intensity parameter to save energy. This conditional parameter adjustment resolves the contradiction between visibility requirements and energy conservation.
Data Source
AI summary
An energy-saving street light system with dynamic real-time brightness adjustment includes a multiple of street lights, each storing a modulated brightness value of the same luminous quota and a predetermined brightness value. If the street light detects no motor vehicle passing by or receives no notice for a period of time, then a light with the predetermined brightness value will be emitted, or else the largest modulated brightness value will be used for setting and a quantity of one of the luminous quota will be used up. After the whole quantity of the luminous quota is used up, the next smaller modulated brightness value is used for the aforementioned setting procedure until all modulated brightness values are set. If the same receiving unit receives two or more modulated brightness values simultaneously, the modulated brightness value with a greater brightness will be used for the setting.